Function: 1. Comes with 2 suction cup brackets, the light can be fixed in the aquarium for easy installation. 2. UV light helps to purify water and remove bacteria in aquarium, pool, pond, etc. 3. Easy to Use - Press the button to control the light, making the entire cleaning process easier than ever. 4. Made of the highest quality material for a long service life. 5. Significantly improve the speed and strength of regular sterilization and offer better water condition. Specification: Characteristics: UV light helps to purify water and remove bacteria in aquarium, pool, pond, etc. Comes with 2 suction cup brackets, the light can be fixed in the aquarium for easy installation. Easy to use - Press the button to control the light, making the entire cleaning process easier than ever. Made of the highest quality material for a long service life. They significantly improve the speed and strength of regular sterilization and provide better water condition. Specification: Material: plastic szkło Power: 5W 7W 9W 11W Optional Power Length Diameter of pipe 5 W 18 cm/7,09 inch 2 cm/0,79 inch 7 W 26 cm/10,24 inch 2 cm/0,79 inch 9 W 26 cm/10,24 inch 2 cm/0,79 inch 11 W 33 cm/13 inches 2 cm/0,79 inch Voltage: 220 V Color: as shown in the pictures List of packages: 1 * ultraviolet light 1. This product can emit ultraviolet light, please do not observe it directly with the naked eye. 2. UV light can only be used in the filter tank and direct irradiation of creatures is prohibited. 3. 4.